ESTROGEN AND PROGESTERONE-RECEPTOR ANALYSES IN MORE THAN 4000 HUMAN BREAST-CANCER SAMPLES - A STUDY WITH SPECIAL REFERENCE TO AGE AT DIAGNOSIS AND STABILITY OF ANALYSES

被引:50
作者
FERNO, M
BORG, A
JOHANSSON, U
NORGREN, A
OLSSON, H
RYDEN, S
SELLBERG, G
机构
[1] Department of Oncology, University Hospital, Lund
关键词
Age; Breast cancer; Estrogen receptor; Progesterone receptor; Stability of analyses;
D O I
10.3109/02841869009126532
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Estrogen (ER) and progesterone receptors (PgR) were measured in the same laboratory in more than 4000 breast cancer biopsy samples obtained from 15 different hospitals during ten years. ER was measured with isoelectric focusing and PgR with the dextran-coated charcoal method and Scatchard analysis. The distribution pattern for both ER and PgR was during this time period and for the different hospitals rather similar indicating a good stability of the analytical methods. ER concentration was positively correlated with patient age, with a higher percentage of positive samples and higher concentrations in patients ≥50 years of age compared with patients <50 years. PgR concentration increased with age for patients under 50 years, but a considerable reduction of PgR concentration and of the proportion of positive samples was seen in patients between 50 and 59 years of age. Above this age the PgR concentration again increased with increasing age. The PgR/ER ratio and the proportion of ER- PgR+ samples were higher in patients under 50 years compared to older patients. ER and PgR values decreased during tamoxifen treatment, during pregnancy and after preoperative radiotherapy. Wet weight, DNA and protein were compared as reference parameters for the expression of ER and PgR concentrations. Strong correlations were obtained suggesting that similar information can be obtained with either of these reference parameters. ©1990 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.
引用
收藏
页码:129 / 135
页数:7
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